Answer to Question #56073 in Human Anatomy and Physiology for sue
What is the event that creates the absolute refractory period?
Potassium leak channels close
Calcium voltage-channels close
Sodium voltage-gated channels inactivate and will not open until the membrane potential drops below threshold
Localized ion concentrations become imbalanced so abnormal current flows result
Potassium blocks the voltage-gated sodium channels, and continues to do so until removed by the Na+/K+ pump